Etymology

Phnom Penh (literally, "Penh's Hill") takes its name from the present Wat Phnom ("Hill Temple"). Legend has it that in 1372, a wealthy widow named Lady Penh found a Koki tree floating down the Tonle Sap river after a storm.[7] Inside the tree were four bronze Buddha statues and a stone statue of Vishnu. Daun Penh ordered villagers to raise the height of the hill northeast of her house and used the Koki wood to build a temple on the hill to house the four Buddha statues, and a shrine for the Vishnu image slightly lower down. The temple became known as Wat Phnom Daun Penh, which is now known as Wat Phnom, a small hill 27 metres (89 ft) in height.
Phnom Penh's official name, in its short form, is Krong Chaktomok (Khmer: ក្រុងចតុមុខ) meaning "City of Four Faces". Krong Chaktomuk is an abbreviation of the full name which was given by King Ponhea Yat, Krong Chaktomuk Mongkol Sakal Kampuchea Thipadei Serey Thereak Borvor Inthabot Borei Roth Reach Seima Maha Nokor (Khmer: ក្រុងចតុមុខមង្គលសកលកម្ពុជាធិបតី សិរីធរបវរ ឥន្ទបត្តបុរី រដ្ឋរាជសីមាមហានគរ). This loosely translates as "The place of four rivers that gives the happiness and success of Khmer Kingdom, the highest leader as well as unimpregnable city of the God Indra of the great kingdom".[8]